BE360057A - - Google Patents

Info

Publication number
BE360057A
BE360057A BE360057DA BE360057A BE 360057 A BE360057 A BE 360057A BE 360057D A BE360057D A BE 360057DA BE 360057 A BE360057 A BE 360057A
Authority
BE
Belgium
Prior art keywords
coil
well
damping
devices
armature
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE360057A publication Critical patent/BE360057A/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/04—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes
    • H03G9/06—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control

Landscapes

  • Electromagnets (AREA)
BE360057D BE360057A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE360057A true BE360057A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=33447

Family Applications (1)

Application Number Title Priority Date Filing Date
BE360057D BE360057A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE360057A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Similar Documents

Publication Publication Date Title
JPH0267899A (ja) コンタクトピックアップ
FR2562353A1 (fr) Dispositif electro-acoustique
US2373181A (en) Transducer
JP6198217B1 (ja) 楽器用ピックアップ装置
EP0365393A1 (fr) Haut-parleur omnidirectionnel à large bande passante
BE360057A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR2570238A1 (fr) Vibrateur electromecanique audio-frequence, destine a la reproduction de vibrations ressenties par le corps humain
JPH0879896A (ja) スピーカ
US4194744A (en) Phonograph pick-up transducer using a one-piece bearing and inertial damper fabricated from different materials
BE439377A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US1728278A (en) Electromagnetic translating device
US2563860A (en) Sound recording and reproducing head
Kellogg Electrical reproduction from phonograph records
US2560358A (en) Magnetic phonograph pickup
NO132366B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE398443A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US1630640A (en) Electric phonograph reproducer
US2038687A (en) Acoustic translating device
BE417074A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US1789270A (en) Adjustable speaker unit
US1783044A (en) Reproducer
US1057279A (en) Apparatus for use in the treatment of deafness.
US1777036A (en) Magnetic pick-up for phonographs
US1774494A (en) Electric pickup
GB256280A (en) Improvements in electro-magnetic apparatus specially suitable for electrically reproducing sound records